1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/rt/emul/mini/src/main/java/java/util/zip/Checksum.java	Tue Feb 26 16:54:16 2013 +0100
     1.3 @@ -0,0 +1,60 @@
     1.4 +/*
     1.5 + * Copyright (c) 1996, 1999, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.  Oracle designates this
    1.11 + * particular file as subject to the "Classpath" exception as provided
    1.12 + * by Oracle in the LICENSE file that accompanied this code.
    1.13 + *
    1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 + * version 2 for more details (a copy is included in the LICENSE file that
    1.18 + * accompanied this code).
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License version
    1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 + *
    1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.25 + * or visit www.oracle.com if you need additional information or have any
    1.26 + * questions.
    1.27 + */
    1.28 +
    1.29 +package java.util.zip;
    1.30 +
    1.31 +/**
    1.32 + * An interface representing a data checksum.
    1.33 + *
    1.34 + * @author      David Connelly
    1.35 + */
    1.36 +public
    1.37 +interface Checksum {
    1.38 +    /**
    1.39 +     * Updates the current checksum with the specified byte.
    1.40 +     *
    1.41 +     * @param b the byte to update the checksum with
    1.42 +     */
    1.43 +    public void update(int b);
    1.44 +
    1.45 +    /**
    1.46 +     * Updates the current checksum with the specified array of bytes.
    1.47 +     * @param b the byte array to update the checksum with
    1.48 +     * @param off the start offset of the data
    1.49 +     * @param len the number of bytes to use for the update
    1.50 +     */
    1.51 +    public void update(byte[] b, int off, int len);
    1.52 +
    1.53 +    /**
    1.54 +     * Returns the current checksum value.
    1.55 +     * @return the current checksum value
    1.56 +     */
    1.57 +    public long getValue();
    1.58 +
    1.59 +    /**
    1.60 +     * Resets the checksum to its initial value.
    1.61 +     */
    1.62 +    public void reset();
    1.63 +}